Bushnell GPS Waypoint file (bushnell)

It's an oddity for many GPSBabel norms that this format requires each
waypoint be in a separate file. Our "output filename" argument, -F is
modified to take an "output filename template". The output filename
you specify will have a dash, and a sequentially increasing integer,
and the ".wpt" extension appended to it. When the names are shown on
the GPS itself, the shortnames from the source format are used and not these
"made up" names.

At least for the 200CR, the directory name used by the device is "WAYPOINT"
in the root directory. It's also worth mentioning that its USB Mass Storage
protocol appears to not work on (at least) Snow Leopard 10.6.2. It's not
known if other Onix models have a more compatible USB implementation.